Analysis

  • max time kernel
    135s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/01/2023, 18:26

General

  • Target

    6eee114a36f811cd6cbcf06066ab380522b17dd4fdd44.exe

  • Size

    796KB

  • MD5

    f6dbc78ddf0f87e29d0f7fcf6e9d7f75

  • SHA1

    82ace216270342a162e5c9ce777b83ae490486e7

  • SHA256

    6eee114a36f811cd6cbcf06066ab380522b17dd4fdd4480dd79c44f3855fd078

  • SHA512

    f00e82a1d386607780fb4a1973ff7e946f3b3a73c4c596fd63e73bcd974b0953ae002c3cb13d7a18be95df51562681cdb73bf1f8251f7ca138ff5d8e90f939f6

  • SSDEEP

    24576:6AWPfrKoCcLIyaxbSoFrW6BxdLCDYJmRz4CF6:wPJlapSOr7xQSmRz16

Malware Config

Extracted

Family

djvu

C2

http://drampik.com/raud/get.php

Attributes
  • extension

    .assm

  • offline_id

    ex4uvTKsM2vEkIcr3MjXi2C6v27h1mS682iUXGt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://drampik.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-wY6g3rkhZz Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0638JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

2.2

Botnet

19

C2

https://t.me/litlebey

https://steamcommunity.com/profiles/76561199472399815

Attributes
  • profile_id

    19

Signatures

  • Detected Djvu ransomware 10 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6eee114a36f811cd6cbcf06066ab380522b17dd4fdd44.exe
    "C:\Users\Admin\AppData\Local\Temp\6eee114a36f811cd6cbcf06066ab380522b17dd4fdd44.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4848
    • C:\Users\Admin\AppData\Local\Temp\6eee114a36f811cd6cbcf06066ab380522b17dd4fdd44.exe
      "C:\Users\Admin\AppData\Local\Temp\6eee114a36f811cd6cbcf06066ab380522b17dd4fdd44.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4480
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\504e575a-adf2-4cac-8b2c-a09046208ed7" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1824
      • C:\Users\Admin\AppData\Local\Temp\6eee114a36f811cd6cbcf06066ab380522b17dd4fdd44.exe
        "C:\Users\Admin\AppData\Local\Temp\6eee114a36f811cd6cbcf06066ab380522b17dd4fdd44.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3528
        • C:\Users\Admin\AppData\Local\Temp\6eee114a36f811cd6cbcf06066ab380522b17dd4fdd44.exe
          "C:\Users\Admin\AppData\Local\Temp\6eee114a36f811cd6cbcf06066ab380522b17dd4fdd44.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2352
          • C:\Users\Admin\AppData\Local\3b5c246a-0677-40f4-8227-d65c1e2c84a2\build2.exe
            "C:\Users\Admin\AppData\Local\3b5c246a-0677-40f4-8227-d65c1e2c84a2\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4232
            • C:\Users\Admin\AppData\Local\3b5c246a-0677-40f4-8227-d65c1e2c84a2\build2.exe
              "C:\Users\Admin\AppData\Local\3b5c246a-0677-40f4-8227-d65c1e2c84a2\build2.exe"
              6⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4448
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\3b5c246a-0677-40f4-8227-d65c1e2c84a2\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1632
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:648
          • C:\Users\Admin\AppData\Local\3b5c246a-0677-40f4-8227-d65c1e2c84a2\build3.exe
            "C:\Users\Admin\AppData\Local\3b5c246a-0677-40f4-8227-d65c1e2c84a2\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:228
            • C:\Windows\SysWOW64\schtasks.exe
              /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
              6⤵
              • Creates scheduled task(s)
              PID:2000
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1856
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      2⤵
      • Creates scheduled task(s)
      PID:2600

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • C:\ProgramData\nss3.dll

    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    2KB

    MD5

    c2ed2c633828a1bcf603a04772f6bc6f

    SHA1

    a2d3abb39d5551c5b594d30d0dcdd05fa5a50085

    SHA256

    7e8561e47f6e0af457bca0ff0ea2fa11f64942e80e2d20e5a9611a9915049808

    SHA512

    5ab5dc3bfbf196b4eeaa40ee06e94c452f271046c7e0b656cf944ab1cdc109130f40d18388adcc4b5eb15de08f996f8650f136f1fa53e2ae8efe1bb0715ea83a

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    1KB

    MD5

    c05cde36e6aec866849076c14087be05

    SHA1

    85192ab5ce9f5994b721eb784e1cbf4f66c9c60b

    SHA256

    2b4e67ba32a09a89ddf8bafcc22b71899a04aa20c5d60a7620db80504c2bea85

    SHA512

    d3dea2e5aa126a617801b02454478fc3416c18894d0055d2538b2304e6b62113220a4ea200e0645101af5414ddc9ab173bc8d8e8a36059a248f42894eb01181e

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    488B

    MD5

    de57eb40e1e141aaa2d5a86eac561e16

    SHA1

    0ac87398f9e68afc8db6ae05d0c462fe16d32d3b

    SHA256

    ea196443aec22d0edb35464481230c3c42972beb2c6acafd0e7ffd31bfb45e35

    SHA512

    9a1d8b0350c45be5167bfc17caa4f877714458c3c946fb5b94fbd118225b46b1d689aa50a3a79850945f7af20434efc15aaa3e2c0b140f78d9e2f59951146b98

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    482B

    MD5

    9e43d18ba1528cd2d30cc41f32dfbfce

    SHA1

    4abffac3f135c3ace93d84605a3c076e38a955eb

    SHA256

    76d4afbf575269b103f06412f4983e5563ec9134f1eb6cc923927b9da9fa0d9d

    SHA512

    bb6503135656c0f3e2941f0fcacae5b461b5115a86d3f1a3f18def7f4caf6b22f2e697b2ba3b03baa73f83ef04f43db4166df01c6c18156617525946182a02b2

  • C:\Users\Admin\AppData\Local\3b5c246a-0677-40f4-8227-d65c1e2c84a2\build2.exe

    Filesize

    437KB

    MD5

    5bc3c0c24790b3738ab85b644a1c6fc9

    SHA1

    c68547eb157a77f30e88a6c4666f6024765b70d8

    SHA256

    c37e19ba7ca31d3984004ec6534551197c1e4ab710bf26f822924168f17cbe7e

    SHA512

    f7aafcc10e5d1513e523bf7a1aee42316141862ba0d54f5b75ccc18f65a6cd14361728cb4a6a6ea795569431a0bc03792b132269293ba240bd3d9fa1e012c3ab

  • C:\Users\Admin\AppData\Local\3b5c246a-0677-40f4-8227-d65c1e2c84a2\build2.exe

    Filesize

    437KB

    MD5

    5bc3c0c24790b3738ab85b644a1c6fc9

    SHA1

    c68547eb157a77f30e88a6c4666f6024765b70d8

    SHA256

    c37e19ba7ca31d3984004ec6534551197c1e4ab710bf26f822924168f17cbe7e

    SHA512

    f7aafcc10e5d1513e523bf7a1aee42316141862ba0d54f5b75ccc18f65a6cd14361728cb4a6a6ea795569431a0bc03792b132269293ba240bd3d9fa1e012c3ab

  • C:\Users\Admin\AppData\Local\3b5c246a-0677-40f4-8227-d65c1e2c84a2\build2.exe

    Filesize

    437KB

    MD5

    5bc3c0c24790b3738ab85b644a1c6fc9

    SHA1

    c68547eb157a77f30e88a6c4666f6024765b70d8

    SHA256

    c37e19ba7ca31d3984004ec6534551197c1e4ab710bf26f822924168f17cbe7e

    SHA512

    f7aafcc10e5d1513e523bf7a1aee42316141862ba0d54f5b75ccc18f65a6cd14361728cb4a6a6ea795569431a0bc03792b132269293ba240bd3d9fa1e012c3ab

  • C:\Users\Admin\AppData\Local\3b5c246a-0677-40f4-8227-d65c1e2c84a2\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\3b5c246a-0677-40f4-8227-d65c1e2c84a2\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\504e575a-adf2-4cac-8b2c-a09046208ed7\6eee114a36f811cd6cbcf06066ab380522b17dd4fdd44.exe

    Filesize

    796KB

    MD5

    f6dbc78ddf0f87e29d0f7fcf6e9d7f75

    SHA1

    82ace216270342a162e5c9ce777b83ae490486e7

    SHA256

    6eee114a36f811cd6cbcf06066ab380522b17dd4fdd4480dd79c44f3855fd078

    SHA512

    f00e82a1d386607780fb4a1973ff7e946f3b3a73c4c596fd63e73bcd974b0953ae002c3cb13d7a18be95df51562681cdb73bf1f8251f7ca138ff5d8e90f939f6

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • memory/2352-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2352-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2352-167-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2352-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3528-146-0x0000000002165000-0x00000000021F6000-memory.dmp

    Filesize

    580KB

  • memory/4232-163-0x00000000006BD000-0x00000000006EE000-memory.dmp

    Filesize

    196KB

  • memory/4232-165-0x00000000005E0000-0x0000000000636000-memory.dmp

    Filesize

    344KB

  • memory/4448-190-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/4448-161-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/4448-166-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/4448-164-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/4448-168-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/4448-169-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB

  • memory/4448-192-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/4480-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4480-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4480-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4480-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4480-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4848-136-0x00000000023E0000-0x00000000024FB000-memory.dmp

    Filesize

    1.1MB

  • memory/4848-135-0x000000000228A000-0x000000000231B000-memory.dmp

    Filesize

    580KB